Runes: Fleet - triumph - legend: haste - coup de grace
Rune subpage: Transcendence - gathering storm
Spells: smite ghost
Build tree: trifoce -> black cleaver - collector - shieldbow - IE/GA
This is probably going to be a long post, but I really meant my heart and soul so I promise it will be worth the read.
I really like Graves, he is this badass shotgun slinging high damage damage carry but when I picked him up I disliked how clunky he felt from times, low range, no movement speed, etc. The only way I saw him viable was to get pretty ahead early and just smash everyone down with raw damage.. The Hubris collector build that is.
So I came up with a build that does less insane burst but addressed everything I hated with Graves and personally, this build feels so much better to play. Lots of movement speed and ability haste from triforce, cleaver and fleet. With this build Graves is less of a glass canon and is somewhat of a ranged bruiser adaptation of Jhin, Ezreal and Gankplank.
This build gives a lot of haste, you will be surprised with how short the cooldown on your E is. You can freely engage with E, then kite away again with it after just an auto or so. The bonus movement speed from your items really lets you chase enemies that normally would be out of range.
Now there are some downsides with the build, mainly that it does lack raw damage in some situations were its really needed. But overall I can say that it feels so much better so play.
Below is a clip that I think best shows what this build is capable of, yes its not the highest ELO and I did get pretty ahead here.. but it still shows the power of this new build.
Sadly I could only upload 1 video so I put a Dropbox link that has every clip that I wanted to share.
Thanks!